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7aeef1548a
lm90_detect_nuvoton() is supposed to return NULL if it can not detect
a chip, or a pointer to the chip name if it does. Under some circumstances
it returns an error pointer instead. Some versions of gcc interpret an
ERR_PTR as region of size 0 and generate an error message.
In function ‘__fortify_strlen’,
inlined from ‘strlcpy’ at ./include/linux/fortify-string.h:159:10,
inlined from ‘lm90_detect’ at drivers/hwmon/lm90.c:2550:2:
./include/linux/fortify-string.h:50:33: error:
‘__builtin_strlen’ reading 1 or more bytes from a region of size 0
50 | #define __underlying_strlen __builtin_strlen
| ^
./include/linux/fortify-string.h:141:24: note:
in expansion of macro ‘__underlying_strlen’
141 | return __underlying_strlen(p);
| ^~~~~~~~~~~~~~~~~~~
Returning NULL instead of ERR_PTR() fixes the problem.
Fixes:
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.